Cooling device for an engine.



G. W. MARSH.

COOLING DEVICE FOR AN ENGINE.

APPLICATION FILED JAN.6, 1913.

NH [Masses Patented Nov. 4, v1913.

I Ga ye VIC/V0713]? GEORGE w. nansn, or OAKLAND, oamronnm coonms DEVICE FOR an ENGINE.

evant.

Specification or Letters Patent. Application filed January 6, 1912. semi 1T0. 740,511.

To all whom it may concern:

Be it known that I, GEORGE W. MARSH, a citizen of the United States, residing at Oakland, in the "county of Alamada and State of California, have invented certain new and useful Improvements in Cooling Device for an Engine, of which the following is a specification.

This invention relates to improvements incooling systems for automobiles and has special reference to a device which is provided with a means for increasing the power -of the engine and for preventing or remov-;

ing deposits of carbon within the cylinder.

Another object of this invention is to construct a cooling means for the radiator thereby always maintaining a partial vacuum therein, whereby the boiling-point of the water will be greatly lowered thereby keeping the engine in a cooled condition.

A still further object of this invention is the production of a device which is adapted to introduce a mixture of steam and air into I the cylinder, the formerpreventing the deposition of carbon therein, while the latter= power of the engine by better I increases the combustion.

With these and other objects in view this invention consists in general of certain novel Constructions, combinations and arrangement of parts as will be hereinafter fully described and claimed.

is a central longitudinal section of the forward portion of the engine. Fig. 2, is a central longitudinal section of the check valve used in combination with this device. Fig. 3, is a longitudinal section on the three-way valve used with this invention.

Referring to the accompanying drawing by numerals, it will be seen that the device consists of the ordinary engine 1 which is provided with a water jacket 2 and an exhaust 3. The engine is also provided with an inlet 4 which communicates with the carbureter 5 and'the fuel intake member 6. In

' order to cool the engine there is provided the usual fan 7.

Mounted at the forward portion of the jacket 2 to the lower corner of the top memher .of the radiator 8, whereby the water level in the upper portion of the radiator 8 Patented Nov. 4, 913.

will be at a considerable distance from the top thereof. In order to fill the radiator 8 there is provided a filling neck 10 which is adapted to be closedby means of the threaded cap 11. It will further be noted, that the lower portion of the radiator 8 is provided with the return pipe 12 whereby to allow the waterto circulate.

.From the foregoing description it-will be Yes seen that the common engine is used in combination with this device.

The device or invention consists in general of the tube 13 which is provided with the upwardly curved portion 14, the upper end of which extends up into the filling neck' 10 so as to normallv remain above the; water level. The lower portion of this tube 13 is connected with the inlet 4 as illustrated at 15. Adjacent to the lower end of this tube 1 13 there is provided a valve casing 16in which the check valve 17, is mountedjIt will be seen that in the use of this check valve 17 the vapor or steam which is generated in the radiator 8 will be drawn into the inlet 4, there mixing with the gases which when the device is not in use it will be i'mpossible for any of the gases to pass through the check valve. The tube 13 is also pro- In the accompanying drawings: Figure 1',

vided with a secondary valve casing 18 in which the three-way valve 19 is rotatably mounted. This three-Way valve 19 is pro vided with the stem 20 and the rod 21 Where by the same may be manually o erated. The

casing 18 is provided with the l wer'opening 24 and the valve 25 which is adapted to allow a certain. amount of air to be drawn throu h the conduit 9 and into the radiator 8. As t e air which is drawn through'thi'sconduit is drawn from without the engine the same will be of a cooler temperature whereby as the same passes t'hrpugh the water it will be heated, and at the same time will lower the temperature of the water. After this alr '--passes through the water in theupper portion of the radiator 8, it will ascend into the filling neck at which time it will pass down through the tube 13 owing'to the suction therein. l Vhe'n it is' not desired to use this device the stem may be so moved by j the rod 21 as to allow the forward portion of the secondary casing 18 to communicate with the exhaust 23 whereby the steam withgine is started to run the vapor therefrom will pass into the cylinder, thereby cleansing the same. By detaching the rod 21 from the member 20, the member 20 may be swung so as to allow the rear portion of the secondary casing 18 to communicate with the exhaust 23, when a can of kerosene may be.

4 placed upon the lower portion of the exhaust 23 whereby the suction within the cylinder will be sufiicient to draw a quantity of the same through the exhaust 23 and tube 13 into the inlet 4: and the cylinder whereby the same will be cleansed of any deposits of carbon which may be contained therein. it will, of course, be understood that the air which is admit-ted through the valve 25 and stem-24c will aid the combustion while thesteam which is carried. off from the radiator 8 will tend to prevent any carbon from being deposited within the cylinder.

Having thus described the inventionwhat is claimed as new, 1s:--

. I. Ina cooling system for an automobile,

I the combination with a water jacket and a cylinder of a gas engine, a radiator positioned contiguous to said water jacket, a conduit forming a communication between said water jacket and radiator, a carburetor provided with an inlet leading into said cylinder a tube provided with a check. valve, said tube also provided with -a'valve casing, a three-- Way valve mounted in said casing, an exhaust-member carried by said casing and depending therefrom, said exhaust commir nicating with said three-wayjvalve for allowing the vapor from'said radiator to be exhausted when so desired, manually operating means connected to said three-way valve for operating the same, the vapor in said radiator adapted to pass through said tube, valves, and inlet so as to enter the cylinder.

the combination with a water jacket and a cylinder of a gas engine, a radiatorpositioned adjacent said water jacket, a conduit 2. In a cooling system for an automobile, I

forming a communication between said.

water jacket and radiator, a carbureter provided with an'inlet leading into said cylinder, a tube provided with a check valve and a manually operable valve constituting a passage between said radiator and said inlet, said manually adjustable valve provided with an exhaust for discharging the vapor from said radiator, a stem extending from said manually operable valve, andan operating rod connected to'said stem for operat ing said valve.

In testimony whereof I afiix my signature two witnesses.

in presence 0t GEORGE W. MARSH.

Witnesses:

F. P. Sonnounnn,

H. W. S'rALEY. 

